The U.S. Environmental Protection Agency's labels for vehicle fuel efficiency do not show a complete picture of the ownership costs for hybrid and electric cars and are likely ineffective in affecting consumer choices, according to a recently released study.

Gov. Steve Bullock has joined the call to have the shuttered Columbia Falls Aluminum Co. plant placed on the federal Superfund National Priorities List, a step toward gaining federal funding to clean up the 120-acre site.

The oil train that exploded in West Virginia met the industry's voluntary 2011 safety standards, but a growing number of accidents has the Obama administration considering tougher rules for tank cars. Here is a look at what's rolling on U.S. rails.

The derailment of a train carrying crude oil in West Virginia is one of three in the past year involving tank cars that already meet a higher safety standard than what federal law requires — leading some to suggest even tougher requirements that industry representatives say would be costly.